SEEING INFRARED

Ernie McFarland & Tom Kehn

Department of Physics

How is the signal coded?How is the signal coded?

–Use an IR-sensitive solar cell Use an IR-sensitive solar cell (such as Radio Shack #276-(such as Radio Shack #276-124) connected to an 124) connected to an oscilloscope.oscilloscope.

ReferencesReferences

E. McFarland & T. Kehn, “Seeing E. McFarland & T. Kehn, “Seeing Infrared,” Infrared,” The Physics TeacherThe Physics Teacher 3838, May , May 2000, pp 314-3152000, pp 314-315

H. Manow, “Hearing Infrared,” H. Manow, “Hearing Infrared,” The The Physics TeacherPhysics Teacher 3535, Dec. 1997, p 552, Dec. 1997, p 552

J.S. Huebner & N. Sundaralingam, J.S. Huebner & N. Sundaralingam, “Remote controls for infrared “Remote controls for infrared experiments,” experiments,” Am. J. Phys.Am. J. Phys. 66, June 66, June 1998, pp 544-5471998, pp 544-547